North/South Dirt Oval Classic

Prepare to immerse yourself in the electrifying energy of the MOD Sprint race, a heart-racing experience where speed and precision collide on the oval track. Don’t hesitate – come be a part of the excitement at the North/ South Dirt Oval Classic and witness the adrenaline-fueled thrill of race day! Reserve your spot now and experience the rush firsthand!

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MOD Sprint Class Rules

The MOD Sprint class is a thrilling division in dirt oval racing that promises heart-pounding excitement and intense competition. With strict regulations in place to ensure a fair and competitive environment, racers and fans alike are drawn to the adrenaline rush this class provides. Featuring powerful MOD motors for all out speed, makes the MOD Sprint class a must-watch event at the North/South Dirt Oval Classic. Prepare to witness the speed, skill, and excitement of the MOD’s – don’t miss your chance to be a part of the action!

Chassis

General-Maximum Overall Length: 18.000″.
Maximum Chassis width: 4.025″.
Wheelbase: =9.5″ min, 11.5″
Tread width max 1O.O”
Weight-Minimum weight is 55oz.

Motor

Any ROAR approved motor may be use
ROAR Approval for all motors must be approved on or 30 days prior to an event

Battery

Any 2 cell hard cased lipo battery may be
No additional batteries are allowed including those used to power receivers or cooling fans.
All batteries will be checked prior to each race to ensure battery voltage is a maximum of 44 volts or less.
No Gyro’s or driving assist devices will be allowed.

ESC

Any Speed Control from the ROAR Approved list
ROAR Approval for all ESC must be approved on or 30 days prior to an event

Tires

Foam Tires ONLY. (No Silvers)
Max wheel diameter:
2.0″ Front tire and wheel width:
Max 1.1″ Rear tire and wheel
width: Max 1.5″, Min 1.4″

Body/Cage

Cage-Sprint cars must have a scale appearing contemporary cage made out of rounded
The cage must be symmetrical left to right and mounted level to the Unrealistic shaped cages designed to exploit the rules below are not permitted.
Maximum cage width at driver halo, down tubes, and top frame rail: 600″.
Maximum cage height 5″ from top of chassis to top of cage at highest point.
All cage and body components such as cage, bumpers, nerf bars, hoods, side panels, tanks, must be mounted on the centerline of the cage.
Chassis may not extend outside of the side panels by more than 1/4″ on either side.
Bumpers-A flat, curved or tubular front bumper (or combination of) must be used and may not be designed to direct air or create
Maximum height of front bumper is 1.75″ from the bottom of the lowest point of the
Scale appearing side nerf bars must be used on both sides of the car (left side of nitro sprint is optional due to clearance needed for nitro exhaust).
A scale appearing rear hoop style bumper must be
Bumpers and nerf bars must be made of rounded stock with no sharp
Tail tank-A traditional scale appearing rounded style three dimensional rear fuel cell must be
Headers-Three dimensional scale appearing exhaust headers must appear on both sides of car in “engine area” Cage Side panels-Flat side panels may be made from molded or fabricated
Maximum height of side panels in front of the driver cockpit is 3.80″ from the bottom of the chassis.
Must have minimum of 3/4″ high by 5″ long openings on both sides of cage in driver compartment.
Additional material may be used/added to either side of the side panel openings to replicate a scale appearing driver but may not exceed 1″ x 1″.(Note that the top wing mounts may cover these openings for winged )
Side panels may not extend beyond the rear of the cage by more than 25″.Side panels may not extend above or in front of the front down tubes. Side Panels may not extend into the area that is behind the rear axle AND below the top of the rear nerf bar.
Scale appearing driver arm guards and engine vents may be used but cannot extend more than 3/8″ from the side
No other flares or turnouts designed to deflect, trap and/or form a pattern for air to travel in a directed manner are permitted except for those used to cool
HoodArea-A scale appearing hood must be used and is defined as beginning at the front axle and ending at
1. the front of the driver cockpit.
The hood must be symmetrical from left to right.
The hood must be tall enough and wide enough to allow room for a scale engine intake and air cleaners (no unrealistically low or flat hoods).
Minimum vertical gap from top of hood to bottom of front cage crossbar: .750″.
The hood may not drop below the nearest point of the side panels by more than 3/8″ and may not have any channels more than 25″ deep designed to trap or direct air.

Wings

Nose Area-A molded or fabricated nose piece may be used and is defined from the front axle forward to the front bumper.
Front bumper may not extend more than 3″ from front axles.
Nose piece (any Lexan) must be at least 1/4″ back from the leading edge of the front bumper.
Maximum width of nose piece/bumper is 3.75″. Maximum width of any surface designed to add downforce is 3.125″.
Nose piece may not extend above the cage down tubes or an imaginary line connecting the down tubes if the cage is a split design.
Front wing/mounts-For front wing dimensions see appropriate wing drawing pdf.
The front wing center section may not extend in front of the front bumper.
Front wing mounts may be made of Lexan but may not exceed 1.75″ in length and 1.75″ in height and may not extend in front of or behind the center section of the wing.
Top wing/mounts-For top wing dimensions see appropriate wing drawing pdf.
The 6×6″ main wing deck will be the standard Sprint Car wing size.
Top wings are mandatory and front wings are optional.
Top wing height at leading edge: 5.00″minimum / 6.5″ maximum from bottom of chassis.
Center section and side panels must be made from at least 3 separate pieces of polycarbonate, carbon or aluminum material.
All corners and edges must be rounded and free of sharp edges.
Main and Front wings must be mounted so that they are centered on cage, no offset wings.
Wing center sections must have all 4 corners set at 90 degree angles, no canted or angled panels.
Wings must also be mounted level from side to side.
Center section of wing may not extend beyond leading or trailing edge of side panels.
Side panels must have braces that hold side panel rigid at 90deg. to center section during race conditions.
Two braces are required from top of the center foil to the left sideboard and one brace is permitted below the center foil to the right side board.
Braces can be a maximum of .750″ wide and front edge of front brace must be no more than 1.5″ back from
side panel leading edge.
Side Panels may have front, back, top and bottom turnouts of no more than .375″ and are included in max dimension.
Flat foil center sections will be allowed a .250″ turndown at the leading edge.

Join the Race!

Don’t miss your chance to be part of the thrilling North/South Dirt Oval Classic. Secure your spot today and experience the excitement firsthand!

Register Now

North/South Dirt Oval Classic

MOD Sprint Class Rules

Chassis

General-Maximum Overall Length: 18.000″.

Maximum Chassis width: 4.025″.

Wheelbase: =9.5″ min, 11.5″

Tread width max 1O.O”

Weight-Minimum weight is 55oz.

Motor

Any ROAR approved motor may be use

ROAR Approval for all motors must be approved on or 30 days prior to an event

Battery

Any 2 cell hard cased lipo battery may be

No additional batteries are allowed including those used to power receivers or cooling fans.

All batteries will be checked prior to each race to ensure battery voltage is a maximum of 44 volts or less.

No Gyro’s or driving assist devices will be allowed.

ESC

Any Speed Control from the ROAR Approved list

ROAR Approval for all ESC must be approved on or 30 days prior to an event

Tires

Foam Tires ONLY. (No Silvers)

Max wheel diameter:

2.0″ Front tire and wheel width:

Max 1.1″ Rear tire and wheel

width: Max 1.5″, Min 1.4″

Body/Cage

Cage-Sprint cars must have a scale appearing contemporary cage made out of rounded

The cage must be symmetrical left to right and mounted level to the Unrealistic shaped cages designed to exploit the rules below are not permitted.

Maximum cage width at driver halo, down tubes, and top frame rail: 600″.

Maximum cage height 5″ from top of chassis to top of cage at highest point.

All cage and body components such as cage, bumpers, nerf bars, hoods, side panels, tanks, must be mounted on the centerline of the cage.

Chassis may not extend outside of the side panels by more than 1/4″ on either side.

Bumpers-A flat, curved or tubular front bumper (or combination of) must be used and may not be designed to direct air or create

Maximum height of front bumper is 1.75″ from the bottom of the lowest point of the

Scale appearing side nerf bars must be used on both sides of the car (left side of nitro sprint is optional due to clearance needed for nitro exhaust).

A scale appearing rear hoop style bumper must be

Bumpers and nerf bars must be made of rounded stock with no sharp

Tail tank-A traditional scale appearing rounded style three dimensional rear fuel cell must be

Headers-Three dimensional scale appearing exhaust headers must appear on both sides of car in “engine area” Cage Side panels-Flat side panels may be made from molded or fabricated

Maximum height of side panels in front of the driver cockpit is 3.80″ from the bottom of the chassis.

Must have minimum of 3/4″ high by 5″ long openings on both sides of cage in driver compartment.

Additional material may be used/added to either side of the side panel openings to replicate a scale appearing driver but may not exceed 1″ x 1″.(Note that the top wing mounts may cover these openings for winged )

Side panels may not extend beyond the rear of the cage by more than 25″.Side panels may not extend above or in front of the front down tubes. Side Panels may not extend into the area that is behind the rear axle AND below the top of the rear nerf bar.

Scale appearing driver arm guards and engine vents may be used but cannot extend more than 3/8″ from the side

No other flares or turnouts designed to deflect, trap and/or form a pattern for air to travel in a directed manner are permitted except for those used to cool

HoodArea-A scale appearing hood must be used and is defined as beginning at the front axle and ending at

the front of the driver cockpit.

The hood must be symmetrical from left to right.

The hood must be tall enough and wide enough to allow room for a scale engine intake and air cleaners (no unrealistically low or flat hoods).

Minimum vertical gap from top of hood to bottom of front cage crossbar: .750″.

The hood may not drop below the nearest point of the side panels by more than 3/8″ and may not have any channels more than 25″ deep designed to trap or direct air.

Wings

Nose Area-A molded or fabricated nose piece may be used and is defined from the front axle forward to the front bumper.

Front bumper may not extend more than 3″ from front axles.

Nose piece (any Lexan) must be at least 1/4″ back from the leading edge of the front bumper.

Maximum width of nose piece/bumper is 3.75″. Maximum width of any surface designed to add downforce is 3.125″.

Nose piece may not extend above the cage down tubes or an imaginary line connecting the down tubes if the cage is a split design.

Front wing/mounts-For front wing dimensions see appropriate wing drawing pdf.

The front wing center section may not extend in front of the front bumper.

Front wing mounts may be made of Lexan but may not exceed 1.75″ in length and 1.75″ in height and may not extend in front of or behind the center section of the wing.

Top wing/mounts-For top wing dimensions see appropriate wing drawing pdf.

The 6×6″ main wing deck will be the standard Sprint Car wing size.

Top wings are mandatory and front wings are optional.

Top wing height at leading edge: 5.00″minimum / 6.5″ maximum from bottom of chassis.

Center section and side panels must be made from at least 3 separate pieces of polycarbonate, carbon or aluminum material.

All corners and edges must be rounded and free of sharp edges.

Main and Front wings must be mounted so that they are centered on cage, no offset wings.

Wing center sections must have all 4 corners set at 90 degree angles, no canted or angled panels.

Wings must also be mounted level from side to side.

Center section of wing may not extend beyond leading or trailing edge of side panels.

Side panels must have braces that hold side panel rigid at 90deg. to center section during race conditions.

Two braces are required from top of the center foil to the left sideboard and one brace is permitted below the center foil to the right side board.

Braces can be a maximum of .750″ wide and front edge of front brace must be no more than 1.5″ back from

side panel leading edge.

Side Panels may have front, back, top and bottom turnouts of no more than .375″ and are included in max dimension.

Flat foil center sections will be allowed a .250″ turndown at the leading edge.

Join the Race!